MIDI Keyboard Controller's Design And Research

MIDI keyboard controller is the MIDI music system's important component, MIDI music system is also called the computer music system, is a product which is unified by the computer and music, is the discipline overlapping's important achievement.MIDI is the acronym of the English Musical Instrument Digital Interface (Digital Interface Electronics instruments), computer music's central content includs the MIDI technology and digital audio frequency technology, the initial computer music starts from the MIDI technology pulling in computer system. As the name suggests, MIDI is one kind of data interface standard used for the transmitting signals between the electronic instruments, it is one kind of international general technical agreement (MIDI agreement). The MIDI keyboard controller belongs to the MIDI music system's input device, It can transforms music which is played by the MIDI keyboard controller to the standardard MIDI messages, through following the MIDI agreement's interface,it completes these MIDI messages'the transmission.This article designs the MIDI keyboard controller which is a keyboard controller of non-bringing sound source, it follows the MIDI agreement, it can transmit standard MIDI messages to the computer. It can connect with computer, exterior sound source or other MIDI device through the USB interface or standard MIDI serial port,it may transform the key pressed information which is produced by the keyboard to the MIDI message conveniently and accurately,then it passes them to the computer,in order to procduce anticipated music. Compared with traditional music creation, the recording mode, it will be possible to cause these to be more simpler and more quickly through using the MIDI keyboard controller.This article has introduced the MIDI keyboard controller's present situation and correlation technique's elementary knowledge, Meanwhile the question which is involved in controller's development and the design has been carried on the detailed elaboration. The author uses the chips through the reasonable choice, carries on the hardware design and the software development as well as the system board's welding and debugging, has realized a sample of succinct and practical MIDI keyboard controller finally, its software and hardware's design has the originality.